Science of Brewing Beer Quiz

What are the main ingredients used in beer brewing?

• Water, malted grains, hops, and sugar

• Water, malted grains, sugar, and yeast

• Water, sugar, hops, and yeast

• Water, malted grains, hops, and yeast

How do mineral contents in water affect beer brewing?

• They determine the color of the beer

• They have no effect on the brewing process

• They influence the yeast's growth and sugar metabolism

• They only affect the beer's aroma

What is the primary role of hops in beer?

• To add sweetness

• To stabilize the brew and enhance flavor

• To increase alcohol content

• To provide color

What is the main function of yeast in the fermentation process?

• To add color to the beer

• To convert glucose into alcohol and carbon dioxide

• To provide sweetness

• To stabilize the beer

Which type of yeast is known for producing more esters?

• Lager yeast

• Ale yeast

• Wild yeast

• Seldom yeast

What ester is commonly found in Belgian and wheat beers?

• Ethyl butyrate

• Ethyl hexanoate

• Isoamyl acetate

• Ethyl acetate

Which ester gives a beer a banana-like aroma?

• Ethyl hexanoate

• Ethyl acetate

• Isoamyl acetate

• Ethyl butyrate

What is the main difference between Budweiser and Guinness in terms of brewing?

• Budweiser uses nitrogen for carbonation

• Guinness is filtered and forced carbonated

• Guinness uses wood chips during fermentation

• Budweiser is a pilsner malt, while Guinness uses dark roasted malts

How does natural carbonation differ from forced carbonation?

• Forced carbonation is used by smaller breweries

• Natural carbonation is added after filtering

• Forced carbonation is a result of spontaneous fermentation

• Natural carbonation occurs during fermentation in the bottle

Why is there no need to store beer for long periods?

• The flavor profile is complete at brewing

• Beer improves with age

• Beer loses carbonation over time

• Beer becomes more alcoholic over time